<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			const s = ' welcome ';
			console.log(s.trim());//"welcome"
			console.log(s.trimStart());//"welcome"
			console.log(s.trimEnd());//"welcome"
		</script>
	</body>
</html>
